US Patent 7427431 Write once optical recording medium
Patent 7427431 was granted and assigned to Sony on September, 2008 by the United States Patent and Trademark Office.
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Patent abstract
A write once optical recording medium includes a substrate on which an oxide film serving as an inorganic recording film is formed, the oxide film being made of a recording material of an oxide Ge1Ox (x is an atomic number ratio) of germanium (Ge) and a composition of Ge1Ox of the oxide film being specified so as to satisfy 1.0<x<2.0.
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US Patent 07427431 Write once optical recording medium US Patent 7427431 Write once optical recording medium
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Patent Number
0742743100
Patent Number
742743100
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Official Website
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Infobox
Is a
Current Assignee
0
Patent Jurisdiction
Patent Number
074274310
Date of Patent
September 23, 2008
0Patent Application Number
111117400
Date Filed
April 22, 2005
0Official Website
Patent Primary Examiner
Edits on 24 Sep, 2022
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Infobox
Is a
Current Assignee
0
Patent Jurisdiction
Patent Number
074274310
Date of Patent
September 23, 2008
0Patent Application Number
111117400
Date Filed
April 22, 2005
0Official Website
Patent Primary Examiner
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US Patent 07427431 Write once optical recording medium
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
07427431
Date of patent
September 23, 2008
Patent application number
11111740
Date Filed
April 22, 2005
Patent primary examiner
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